SlideShare uma empresa Scribd logo
1 de 13
Collapsed Cantilevered Balcony
case study
Case Objective
Each tiny step is significant in a building project, the construction supervisor needs
to perform his duties honestly, have a moral responsibility, and take care to avoid risking
the lives of others.
Case study
• This event occurred in 2004 in Texas City, where a newly completed mansion known as
the central Texas lakeside residence was located.
• The event began when two guests decided to stroll onto the third-floor balcony, which
was around 20 feet above the ground, to enjoy the view of Ink Lake, when the balcony
abruptly collapsed, causing significant injuries to these two visitors.
• The architect should not pay the contractor until the materials and quality of work were completed and
checked.
• There was a contract between the contractor and the architect, and it was their ethical responsibility to check
the work quality, and this error was not supposed to happen. So now we have a case and an argument about
who is at fault because there was no contract between them and the contractor.
Ethical issues
• The contractor ignored the design requirements.
• The site investigation was not carried out by the contractor or the designer.
• When attaching the ledger boards to the building, the contractor favored using less
expensive materials.
Suggested solutions and learned lessons
• Perform the necessary inspections that would have alerted him to the problems and allowed
for repairs to be made.
• Joists that pierce the structure would be one option for increasing safety and strength, since
they would provide the necessary moment capacity at the wall to enable the joists to be
installed.
• Before opening the balcony to the public, it must undergo rigorous testing, including the
application of a load.
• One option would have been for the architect to perform the necessary inspections that would
have alerted him to the problems and allowed for repairs to be made.
• Joists that pierce the structure would be one option for increasing safety and strength, since
they would provide the necessary moment capacity at the wall to enable the joists to be
installed.
• Before opening the balcony to the public, it must undergo rigorous testing, including the
application of a load.
Facts
• Even the original design was unable to be safe since it was built on a relatively modest live load, which
would have caused even the bolts to fail without the installation of joist hangers that penetrated the structure
and provided more strength for the cantilevers beam.
• The design have been checked by the framing contractor.
• The designer should inspect the quality of the job before paying.
• To ensure that the construction is reliable and safe, certain tests have to be conducted.
Consequences
• Two accidental victims nearly died.
• The contracting business was responsible for covering any site-related losses.
• All site losses incurred have to be covered by the contracting business.
Issues Faced
Factual issues:
If the nuts were utilized, will the balcony stay alive?
Conceptual issue:
• what is the meaning of the word SAFE?.
Application issue:
If an accurate description of safety was provided to the designer and the contractor, was
the balcony safe?
Moral issues:
• The architect failed to conduct a quality assessment, which resulted in the balcony
being inadequately maintained by the nails used.
• The contractor did not follow the specifications when performing his job.
Ethical approach
Utilitarian Approach
In the interest of the safety of society, the architect and contractor need to have a proper
conversation before reconsidering the agreement. To verify the caliber of the supplies
and craftsmanship employed, he can evaluate the contractor's decision to fire him.
Without his assurance, the balcony's durability and safety might not be assured.
Respect for person approach
It is the responsibility of both the architect and contractor to take, respect for people
when doing their work, as we can see that both disrespected the safety of the people
and their needs.
Did the characters respect ethical principles?
There was no compliance between the architect and contractor with ASCE's ethical first
canons, state:
“When carrying out their professional responsibilities, engineers must put the safety,
health, and welfare of the general public first and work to adhere to the principles of
sustainable development.”
Code of ethics
According to the ASCE ethical code, which forces the engineer to follow the third canon, they
failed to do so.
"Engineers must only make public statements in an accurate and fair manner."
References
https://www.engineering.com/story/the-balcony-collapse-in-berkeley-california-what-can-
we-learn-from-this
Ferguson, N. (2013, November). Overview of American Society of Mechanical Engineers (ASME).
Retrieved from Inspectioneering: https://inspectioneering.com/tag/asme

Mais conteúdo relacionado

Mais procurados

Chapter 10 wall finishes ( plastering,pointing & painting)
Chapter 10 wall finishes ( plastering,pointing & painting)Chapter 10 wall finishes ( plastering,pointing & painting)
Chapter 10 wall finishes ( plastering,pointing & painting)
KHUSHBU SHAH
 
Finishing works (Building Construction)
Finishing works (Building Construction)Finishing works (Building Construction)
Finishing works (Building Construction)
Zairul Zaiky
 
2878-CD-302 TYPICAL STORMWATER DETAILS
2878-CD-302 TYPICAL STORMWATER DETAILS2878-CD-302 TYPICAL STORMWATER DETAILS
2878-CD-302 TYPICAL STORMWATER DETAILS
Reza Bassawon
 
Joints in concrete
Joints in concreteJoints in concrete
Joints in concrete
Aglaia Connect
 

Mais procurados (20)

MODULE-I BUILDING PLANNING AND DESIGN [BTCVC606]
MODULE-I BUILDING PLANNING AND DESIGN [BTCVC606]MODULE-I BUILDING PLANNING AND DESIGN [BTCVC606]
MODULE-I BUILDING PLANNING AND DESIGN [BTCVC606]
 
Methods of concreting
Methods of concretingMethods of concreting
Methods of concreting
 
Chapter 10 wall finishes ( plastering,pointing & painting)
Chapter 10 wall finishes ( plastering,pointing & painting)Chapter 10 wall finishes ( plastering,pointing & painting)
Chapter 10 wall finishes ( plastering,pointing & painting)
 
Topic 9 finishes
Topic 9   finishesTopic 9   finishes
Topic 9 finishes
 
Metrie Moulding Catalog
Metrie Moulding CatalogMetrie Moulding Catalog
Metrie Moulding Catalog
 
Tutor isolated and attached piers .ppt1
Tutor isolated and attached piers .ppt1Tutor isolated and attached piers .ppt1
Tutor isolated and attached piers .ppt1
 
DRAWINGS & SYMBOL FOR THE ENGINEERING PROJECT-IR ASSRUL.pdf
DRAWINGS & SYMBOL FOR THE ENGINEERING PROJECT-IR ASSRUL.pdfDRAWINGS & SYMBOL FOR THE ENGINEERING PROJECT-IR ASSRUL.pdf
DRAWINGS & SYMBOL FOR THE ENGINEERING PROJECT-IR ASSRUL.pdf
 
Retaining walls
Retaining wallsRetaining walls
Retaining walls
 
Types of contracts
Types of contractsTypes of contracts
Types of contracts
 
Finishing works (Building Construction)
Finishing works (Building Construction)Finishing works (Building Construction)
Finishing works (Building Construction)
 
Pre cast vs cast-in-situ concrete
Pre cast vs cast-in-situ concretePre cast vs cast-in-situ concrete
Pre cast vs cast-in-situ concrete
 
Introduction to construction management
Introduction to construction managementIntroduction to construction management
Introduction to construction management
 
2878-CD-302 TYPICAL STORMWATER DETAILS
2878-CD-302 TYPICAL STORMWATER DETAILS2878-CD-302 TYPICAL STORMWATER DETAILS
2878-CD-302 TYPICAL STORMWATER DETAILS
 
english 1 brick thick bond
 english 1 brick thick bond english 1 brick thick bond
english 1 brick thick bond
 
Joints in concrete
Joints in concreteJoints in concrete
Joints in concrete
 
Epoxy Coating/ Flooring
Epoxy Coating/ FlooringEpoxy Coating/ Flooring
Epoxy Coating/ Flooring
 
Specifications of excavation and foundation
Specifications of excavation and foundationSpecifications of excavation and foundation
Specifications of excavation and foundation
 
Bridge construction methodology
Bridge construction methodologyBridge construction methodology
Bridge construction methodology
 
Contracts in professional practice
Contracts in professional practiceContracts in professional practice
Contracts in professional practice
 
GUNITING
GUNITINGGUNITING
GUNITING
 

Semelhante a Presentation10.pptx

No 1 Licensed structural auditor in Mumbai CSR consultant and associates
No 1 Licensed structural auditor in Mumbai CSR consultant and associatesNo 1 Licensed structural auditor in Mumbai CSR consultant and associates
No 1 Licensed structural auditor in Mumbai CSR consultant and associates
CSR Consultant and Associates
 
Engineers in society
Engineers in societyEngineers in society
Engineers in society
Azlin lolin
 

Semelhante a Presentation10.pptx (20)

Project ppt riverside condo
Project ppt riverside condoProject ppt riverside condo
Project ppt riverside condo
 
Managing claims best practices | 2-10 HBW
Managing claims best practices | 2-10 HBWManaging claims best practices | 2-10 HBW
Managing claims best practices | 2-10 HBW
 
No 1 Licensed structural auditor in Mumbai CSR consultant and associates
No 1 Licensed structural auditor in Mumbai CSR consultant and associatesNo 1 Licensed structural auditor in Mumbai CSR consultant and associates
No 1 Licensed structural auditor in Mumbai CSR consultant and associates
 
INTODUCTION TO CIVIL ENGINEERING
INTODUCTION TO CIVIL ENGINEERINGINTODUCTION TO CIVIL ENGINEERING
INTODUCTION TO CIVIL ENGINEERING
 
Cost effectiveness in qulaity construction
Cost effectiveness in qulaity constructionCost effectiveness in qulaity construction
Cost effectiveness in qulaity construction
 
Ethics in Engineering
Ethics in EngineeringEthics in Engineering
Ethics in Engineering
 
Contractor management sections 5 topics 8& 9
Contractor management sections 5 topics 8& 9Contractor management sections 5 topics 8& 9
Contractor management sections 5 topics 8& 9
 
Engineers in society
Engineers in societyEngineers in society
Engineers in society
 
PROPOSED 4BEDROOM DUPLEX & A ONE BEDROOM SEMI-DETACHED RESIDENTIAL DEVELOMENT...
PROPOSED 4BEDROOM DUPLEX & A ONE BEDROOM SEMI-DETACHED RESIDENTIAL DEVELOMENT...PROPOSED 4BEDROOM DUPLEX & A ONE BEDROOM SEMI-DETACHED RESIDENTIAL DEVELOMENT...
PROPOSED 4BEDROOM DUPLEX & A ONE BEDROOM SEMI-DETACHED RESIDENTIAL DEVELOMENT...
 
Maintenance and repair strategies Question answers
Maintenance and repair strategies Question answersMaintenance and repair strategies Question answers
Maintenance and repair strategies Question answers
 
SERVICEABILITY OF CONCRETE
SERVICEABILITY OF CONCRETESERVICEABILITY OF CONCRETE
SERVICEABILITY OF CONCRETE
 
Hidden Horrors of Shoddy ( Poor Quality) Construction
Hidden Horrors of Shoddy ( Poor Quality) ConstructionHidden Horrors of Shoddy ( Poor Quality) Construction
Hidden Horrors of Shoddy ( Poor Quality) Construction
 
Constructionmethodologyandprojectmanagementreport
ConstructionmethodologyandprojectmanagementreportConstructionmethodologyandprojectmanagementreport
Constructionmethodologyandprojectmanagementreport
 
Jaya supermarket presentation 2011 latest
Jaya supermarket presentation 2011 latestJaya supermarket presentation 2011 latest
Jaya supermarket presentation 2011 latest
 
Concrete Contractors NYC_ The Ultimate Guide to Finding the Best in New York.pdf
Concrete Contractors NYC_ The Ultimate Guide to Finding the Best in New York.pdfConcrete Contractors NYC_ The Ultimate Guide to Finding the Best in New York.pdf
Concrete Contractors NYC_ The Ultimate Guide to Finding the Best in New York.pdf
 
How BricknBolt's Home Designs Differ from Traditional Architectural Styles.pptx
How BricknBolt's Home Designs Differ from Traditional Architectural Styles.pptxHow BricknBolt's Home Designs Differ from Traditional Architectural Styles.pptx
How BricknBolt's Home Designs Differ from Traditional Architectural Styles.pptx
 
The Merits of Structural Steelwork
The Merits of Structural SteelworkThe Merits of Structural Steelwork
The Merits of Structural Steelwork
 
Construction portfolio (manvi)
Construction portfolio (manvi)Construction portfolio (manvi)
Construction portfolio (manvi)
 
Non-Residential PowerPoint
Non-Residential PowerPointNon-Residential PowerPoint
Non-Residential PowerPoint
 
iosh-temporary-works.pdf
iosh-temporary-works.pdfiosh-temporary-works.pdf
iosh-temporary-works.pdf
 

Último

Call for Papers - African Journal of Biological Sciences, E-ISSN: 2663-2187, ...
Call for Papers - African Journal of Biological Sciences, E-ISSN: 2663-2187, ...Call for Papers - African Journal of Biological Sciences, E-ISSN: 2663-2187, ...
Call for Papers - African Journal of Biological Sciences, E-ISSN: 2663-2187, ...
Christo Ananth
 
Call Girls In Bangalore ☎ 7737669865 🥵 Book Your One night Stand
Call Girls In Bangalore ☎ 7737669865 🥵 Book Your One night StandCall Girls In Bangalore ☎ 7737669865 🥵 Book Your One night Stand
Call Girls In Bangalore ☎ 7737669865 🥵 Book Your One night Stand
amitlee9823
 
FULL ENJOY Call Girls In Mahipalpur Delhi Contact Us 8377877756
FULL ENJOY Call Girls In Mahipalpur Delhi Contact Us 8377877756FULL ENJOY Call Girls In Mahipalpur Delhi Contact Us 8377877756
FULL ENJOY Call Girls In Mahipalpur Delhi Contact Us 8377877756
dollysharma2066
 

Último (20)

University management System project report..pdf
University management System project report..pdfUniversity management System project report..pdf
University management System project report..pdf
 
Online banking management system project.pdf
Online banking management system project.pdfOnline banking management system project.pdf
Online banking management system project.pdf
 
Booking open Available Pune Call Girls Pargaon 6297143586 Call Hot Indian Gi...
Booking open Available Pune Call Girls Pargaon  6297143586 Call Hot Indian Gi...Booking open Available Pune Call Girls Pargaon  6297143586 Call Hot Indian Gi...
Booking open Available Pune Call Girls Pargaon 6297143586 Call Hot Indian Gi...
 
Call for Papers - African Journal of Biological Sciences, E-ISSN: 2663-2187, ...
Call for Papers - African Journal of Biological Sciences, E-ISSN: 2663-2187, ...Call for Papers - African Journal of Biological Sciences, E-ISSN: 2663-2187, ...
Call for Papers - African Journal of Biological Sciences, E-ISSN: 2663-2187, ...
 
Call Girls Walvekar Nagar Call Me 7737669865 Budget Friendly No Advance Booking
Call Girls Walvekar Nagar Call Me 7737669865 Budget Friendly No Advance BookingCall Girls Walvekar Nagar Call Me 7737669865 Budget Friendly No Advance Booking
Call Girls Walvekar Nagar Call Me 7737669865 Budget Friendly No Advance Booking
 
CCS335 _ Neural Networks and Deep Learning Laboratory_Lab Complete Record
CCS335 _ Neural Networks and Deep Learning Laboratory_Lab Complete RecordCCS335 _ Neural Networks and Deep Learning Laboratory_Lab Complete Record
CCS335 _ Neural Networks and Deep Learning Laboratory_Lab Complete Record
 
PVC VS. FIBERGLASS (FRP) GRAVITY SEWER - UNI BELL
PVC VS. FIBERGLASS (FRP) GRAVITY SEWER - UNI BELLPVC VS. FIBERGLASS (FRP) GRAVITY SEWER - UNI BELL
PVC VS. FIBERGLASS (FRP) GRAVITY SEWER - UNI BELL
 
Intze Overhead Water Tank Design by Working Stress - IS Method.pdf
Intze Overhead Water Tank  Design by Working Stress - IS Method.pdfIntze Overhead Water Tank  Design by Working Stress - IS Method.pdf
Intze Overhead Water Tank Design by Working Stress - IS Method.pdf
 
Call Girls In Bangalore ☎ 7737669865 🥵 Book Your One night Stand
Call Girls In Bangalore ☎ 7737669865 🥵 Book Your One night StandCall Girls In Bangalore ☎ 7737669865 🥵 Book Your One night Stand
Call Girls In Bangalore ☎ 7737669865 🥵 Book Your One night Stand
 
Water Industry Process Automation & Control Monthly - April 2024
Water Industry Process Automation & Control Monthly - April 2024Water Industry Process Automation & Control Monthly - April 2024
Water Industry Process Automation & Control Monthly - April 2024
 
Thermal Engineering Unit - I & II . ppt
Thermal Engineering  Unit - I & II . pptThermal Engineering  Unit - I & II . ppt
Thermal Engineering Unit - I & II . ppt
 
(INDIRA) Call Girl Aurangabad Call Now 8617697112 Aurangabad Escorts 24x7
(INDIRA) Call Girl Aurangabad Call Now 8617697112 Aurangabad Escorts 24x7(INDIRA) Call Girl Aurangabad Call Now 8617697112 Aurangabad Escorts 24x7
(INDIRA) Call Girl Aurangabad Call Now 8617697112 Aurangabad Escorts 24x7
 
FULL ENJOY Call Girls In Mahipalpur Delhi Contact Us 8377877756
FULL ENJOY Call Girls In Mahipalpur Delhi Contact Us 8377877756FULL ENJOY Call Girls In Mahipalpur Delhi Contact Us 8377877756
FULL ENJOY Call Girls In Mahipalpur Delhi Contact Us 8377877756
 
Java Programming :Event Handling(Types of Events)
Java Programming :Event Handling(Types of Events)Java Programming :Event Handling(Types of Events)
Java Programming :Event Handling(Types of Events)
 
Booking open Available Pune Call Girls Koregaon Park 6297143586 Call Hot Ind...
Booking open Available Pune Call Girls Koregaon Park  6297143586 Call Hot Ind...Booking open Available Pune Call Girls Koregaon Park  6297143586 Call Hot Ind...
Booking open Available Pune Call Girls Koregaon Park 6297143586 Call Hot Ind...
 
Bhosari ( Call Girls ) Pune 6297143586 Hot Model With Sexy Bhabi Ready For ...
Bhosari ( Call Girls ) Pune  6297143586  Hot Model With Sexy Bhabi Ready For ...Bhosari ( Call Girls ) Pune  6297143586  Hot Model With Sexy Bhabi Ready For ...
Bhosari ( Call Girls ) Pune 6297143586 Hot Model With Sexy Bhabi Ready For ...
 
Thermal Engineering-R & A / C - unit - V
Thermal Engineering-R & A / C - unit - VThermal Engineering-R & A / C - unit - V
Thermal Engineering-R & A / C - unit - V
 
Vivazz, Mieres Social Housing Design Spain
Vivazz, Mieres Social Housing Design SpainVivazz, Mieres Social Housing Design Spain
Vivazz, Mieres Social Housing Design Spain
 
Call for Papers - International Journal of Intelligent Systems and Applicatio...
Call for Papers - International Journal of Intelligent Systems and Applicatio...Call for Papers - International Journal of Intelligent Systems and Applicatio...
Call for Papers - International Journal of Intelligent Systems and Applicatio...
 
KubeKraft presentation @CloudNativeHooghly
KubeKraft presentation @CloudNativeHooghlyKubeKraft presentation @CloudNativeHooghly
KubeKraft presentation @CloudNativeHooghly
 

Presentation10.pptx

  • 2. Case Objective Each tiny step is significant in a building project, the construction supervisor needs to perform his duties honestly, have a moral responsibility, and take care to avoid risking the lives of others.
  • 3. Case study • This event occurred in 2004 in Texas City, where a newly completed mansion known as the central Texas lakeside residence was located. • The event began when two guests decided to stroll onto the third-floor balcony, which was around 20 feet above the ground, to enjoy the view of Ink Lake, when the balcony abruptly collapsed, causing significant injuries to these two visitors. • The architect should not pay the contractor until the materials and quality of work were completed and checked. • There was a contract between the contractor and the architect, and it was their ethical responsibility to check the work quality, and this error was not supposed to happen. So now we have a case and an argument about who is at fault because there was no contract between them and the contractor.
  • 4. Ethical issues • The contractor ignored the design requirements. • The site investigation was not carried out by the contractor or the designer. • When attaching the ledger boards to the building, the contractor favored using less expensive materials.
  • 5. Suggested solutions and learned lessons • Perform the necessary inspections that would have alerted him to the problems and allowed for repairs to be made. • Joists that pierce the structure would be one option for increasing safety and strength, since they would provide the necessary moment capacity at the wall to enable the joists to be installed. • Before opening the balcony to the public, it must undergo rigorous testing, including the application of a load. • One option would have been for the architect to perform the necessary inspections that would have alerted him to the problems and allowed for repairs to be made. • Joists that pierce the structure would be one option for increasing safety and strength, since they would provide the necessary moment capacity at the wall to enable the joists to be installed. • Before opening the balcony to the public, it must undergo rigorous testing, including the application of a load.
  • 6. Facts • Even the original design was unable to be safe since it was built on a relatively modest live load, which would have caused even the bolts to fail without the installation of joist hangers that penetrated the structure and provided more strength for the cantilevers beam. • The design have been checked by the framing contractor. • The designer should inspect the quality of the job before paying. • To ensure that the construction is reliable and safe, certain tests have to be conducted.
  • 7. Consequences • Two accidental victims nearly died. • The contracting business was responsible for covering any site-related losses. • All site losses incurred have to be covered by the contracting business.
  • 8. Issues Faced Factual issues: If the nuts were utilized, will the balcony stay alive? Conceptual issue: • what is the meaning of the word SAFE?. Application issue: If an accurate description of safety was provided to the designer and the contractor, was the balcony safe?
  • 9. Moral issues: • The architect failed to conduct a quality assessment, which resulted in the balcony being inadequately maintained by the nails used. • The contractor did not follow the specifications when performing his job.
  • 10. Ethical approach Utilitarian Approach In the interest of the safety of society, the architect and contractor need to have a proper conversation before reconsidering the agreement. To verify the caliber of the supplies and craftsmanship employed, he can evaluate the contractor's decision to fire him. Without his assurance, the balcony's durability and safety might not be assured.
  • 11. Respect for person approach It is the responsibility of both the architect and contractor to take, respect for people when doing their work, as we can see that both disrespected the safety of the people and their needs.
  • 12. Did the characters respect ethical principles? There was no compliance between the architect and contractor with ASCE's ethical first canons, state: “When carrying out their professional responsibilities, engineers must put the safety, health, and welfare of the general public first and work to adhere to the principles of sustainable development.” Code of ethics According to the ASCE ethical code, which forces the engineer to follow the third canon, they failed to do so. "Engineers must only make public statements in an accurate and fair manner."
  • 13. References https://www.engineering.com/story/the-balcony-collapse-in-berkeley-california-what-can- we-learn-from-this Ferguson, N. (2013, November). Overview of American Society of Mechanical Engineers (ASME). Retrieved from Inspectioneering: https://inspectioneering.com/tag/asme

Notas do Editor

  1. This event occurred in 2004 in Texas City, where a newly completed mansion known as the central Texas lakeside residence was located. The event began when two guests decided to stroll onto the third-floor balcony, which was around 20 feet above the ground, to enjoy the view of Ink Lake, when the balcony abruptly collapsed, causing significant injuries to these two visitors. This balcony was a cantilever balcony that was fastened to the structure with a ledger board and nails rather than bolts as described in the architectural blueprints. The contract said that the architect should not pay the contractor until the materials and quality of work were completed in accordance with the contract, and it did not require the architect to conduct regular site inspections. So now we have a case and an argument about who is at fault because there was a contract between the contractor and the architect, and it was who's ethical responsibility to check the work quality, and this error was not supposed to happen if any reasonable engineer simply did a routine inspection of the work.
  2. One option would have been for the architect to perform the necessary inspections that would have alerted him to the problems and allowed for repairs to be made. The architect may have demanded that the contractor explain why he was using nails instead of bolts, or the contractor could have simply followed the directions and requirements as written in the blueprints. Joists that pierce the structure would be one option for increasing safety and strength, since they would provide the necessary moment capacity at the wall to enable the joists to be installed. Before opening the balcony to the public, it must undergo rigorous testing, including the application of a load. Two lives were in jeopardy because the architect and the contractor failed to do their jobs properly; the architect didn't check the quality of the work, and the contractor didn't follow the instructions in the plans he was given. This case taught us the importance of being trustworthy in our professional endeavors. They also disregarded the first ASCE code of ethics, which states that engineers must prioritize public safety and that engineers should always conduct their jobs properly. The importance of performing thorough site inspections before submitting a project to the owner is another key takeaway. These inspections ensure that the work is safe, and they also verify that the beams, columns, and other structural elements can withstand the anticipated loads, weather, and other challenges.